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Finding the Fourth Proportional to 313,763.12, 432,996.45 and 170,523.17

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Solution

The fourth proportional to 313,763.12, 432,996.45 and 170,523.17 is: 235,323.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,763.12 : 432,996.45 = 170,523.17 : x
  2. Step 2: Convert to fraction form
    313,763.12/432,996.45 = 170,523.17/x
  3. Step 3: Cross multiply
    313,763.12x = 432,996.45 × 170,523.17
  4. Step 4: Simplify right side
    313,763.12x = 73,835,925,087.76
  5. Step 5: Solve for x
    x = 73,835,925,087.76/313,763.12
  6. Step 6: Final answer
    x = 235,323.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.